Depending on the condition you have, you may choose to see one or more of the following types of doctors:

GastroenterologistA gastroenterologist specializes in digestive system disorders. Gastroenterologists see patients when they’re experiencing problems with the liver, gallbladder, stomach, intestines or pancreas. Gastroenterologists treat ailments such as ulcers, cancer, gallbladder disease, colitis and heartburn. They also evaluate the digestive tract during colonoscopy and endoscopy exams.

InternistInternal medicine specialists focus primarily on treating adult medical disorders. Despite the name, they are schooled in treating the whole body, not just the internal organs, and see patients for a variety of conditions and complaints. Also known as internists, these doctors often work as general practitioners. Patients see an internist for an annual checkup and diagnosis, as well as for treatment and management of acute and chronic illnesses (including prescriptions for medications). Preventive medicine and patient education are often emphasized..

NutritionistNutrition is the study of food and how it affects the health of the body. Nutritionists can be physicians, public health officials, dietitians and others in the health care field. Some experts in the field may be involved in research on food production (studying, for example, genetically modified food and additives use), while others may concentrate on benefits of certain diets on cholesterol, weight gain, heart disease and cancer. Some hospitals and clinics employ clinical nutritionists to work with patients on diet and exercise plans to improve their health.PsychologistPsychologists are professionals who focus on patients’ mental and emotional health. Unlike psychiatrists, psychologists are not typically physicians, but they usually hold a Ph.D. or other advanced academic degree. Patients may see a psychologist for a variety of issues, such as eating disorders, anxiety, depression or poor impulse control. Treatment options can include counseling or psychotherapy, although psychologists cannot prescribe medication. There are two branches of psychology: applied psychology, which refers to clinical practitioners who deal with patients; and research or investigational psychology, which involves the scholarly study and/or teaching about the human mind (such as cognition and behavior).

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